Finding the Fourth Proportional to 16,388,327.21, 24,589,742.76 and 8,605,410.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,388,327.21 : 24,589,742.76 = 8,605,410.71 : x
2. Step 2: Convert to fraction form
   16,388,327.21/24,589,742.76 = 8,605,410.71/x
3. Step 3: Cross multiply
   16,388,327.21x = 24,589,742.76 × 8,605,410.71
4. Step 4: Simplify right side
   16,388,327.21x = 211,604,835,580,100.25
5. Step 5: Solve for x
   x = 211,604,835,580,100.25/16,388,327.21
6. Step 6: Final answer
   x = 12,911,924.01